Spiderjet 3000 can be precisely manoeuvred and controlled from some distance, making it ideal for a wide range of difficult surface preparation tasks such as the cleaning of vessel hulls, oil and gas storage tanks or concrete facades. In these typical applications, one of the key benefits of the new device is that it eliminates the logistical planning and costly erection of a scaffold tower or the need to obtain mobile access platforms.

Surface cleaning can begin at extremely short notice.

A strong vacuum holds the device secure to a work surface, with its movement controlled by two individually driven hydraulic motors. These add to the versatility of the new water jetting system, allowing Spiderjet to be set for straight-line operation or manoeuvred in any direction by two motors which enable 360º rotational movement.

Calder's new system delivers 3,000 bar cleaning power to remove paint, rust and other crustaceous deposits over a width of 375mm and at typical stripping rates as high as 70m 2/h.

A significant feature of Spiderjet 3000 is the dual role of the vacuum. As well as providing the clinging power to hold onto the work surface, it is also used to extract dislodged material and waste water and deliver it to a collection tank for further treatment and disposal. This design adds to the overall environmental benefits of using high pressure water jetting techniques for marine and industrial cleaning.

MJ Information No: 16839